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231361162330 = 25130117783333
BaseRepresentation
bin1101011101111000110…
…0110010110001011010
3211010011221211210120011
43113132030302301122
512242311424143310
6254141424352134
722500226301104
oct3273614626132
9733157753504
10231361162330
118a135387681
1238a0a47564a
1318a816b526c
14b2ab20c574
15604182078a
hex35de332c5a

231361162330 has 16 divisors (see below), whose sum is σ = 416770215624. Its totient is φ = 92473326400.

The previous prime is 231361162231. The next prime is 231361162349. The reversal of 231361162330 is 33261163132.

It can be written as a sum of positive squares in 4 ways, for example, as 44765673241 + 186595489089 = 211579^2 + 431967^2 .

It is a super-2 number, since 2×2313611623302 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231361162292 and 231361162301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8878657 + ... + 8904676.

Almost surely, 2231361162330 is an apocalyptic number.

231361162330 is a deficient number, since it is larger than the sum of its proper divisors (185409053294).

231361162330 is a wasteful number, since it uses less digits than its factorization.

231361162330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17784641.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 231361162330 in words is "two hundred thirty-one billion, three hundred sixty-one million, one hundred sixty-two thousand, three hundred thirty".

Divisors: 1 2 5 10 1301 2602 6505 13010 17783333 35566666 88916665 177833330 23136116233 46272232466 115680581165 231361162330